Exam (elaborations)
Lattice Boom Crawler Crane Exam Verified 2024
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Lattice Boom Crawler Crane Exam Verified 2024
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Lattice Boom Crawler Crane ExamVerified 2024
A correct statement about installing a pin-connected lattice boom on mobile crane is
that the - ANSWER-Boom hoist pawl should be used during the installation
A crane requires fourth gear to climb a one-mile hill with a 7% grade. Which of the
following is a correct about driving the crane back down the hill? - ANSWER-Either
fourth or fifth gear should be used.
A crane requires fourth gear to climb a one-mile hill with a 7% grade. Which of the
following is correct about driving the crane back down the hill? - ANSWER-Either fourth
or fifth gear should be used.
A crane with a 100 foot boom will be operating at a 41-foot radius. The load chart shows
an entry indicating 25,000 pounds at a 40-ft radius, followed immediately by an entry
listing 21,000 pounds a 45-ft radius. What is the crane's capacity at the 41-ft radius. -
ANSWER-21000 pounds
A crane with a 100 foot boom will be operating at a 41-ft. radius. The load chart shows
an entry indicating 25,000 lbs. at a 40-ft radius. What is the crane's capacity at the 41 ft.
radius. - ANSWER-21000 lbs.
A crawler crane is based on ________ stability of static load. - ANSWER-75%
A crawler crane traveling forward is defined as traveling in the direction of - ANSWER-
the idler
A crawler crane traveling forward is defined as traveling in the direction of - ANSWER-
The idler
Blocking can be placed under the ends of tracks to - ANSWER-Increase the crane's
stability when operating over the front or back.
If the angle from the jib to the ground is changed from 50 degrees to 40 degrees, the
operator has - ANSWER-Decreased the capacity of the jib.
Manufacture specifications only permit a certain amount of boom to be suspended out
past the connection point of the pendants during assembly or disassembly of the boom.
This portion of boom is called the - ANSWER-Cantilever length
Mats are usually _____ to hold together. - ANSWER-Bolted
Mats are usually ________ to hold together - ANSWER-Bolted
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